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Banach spaces, function spaces, real functions, integral transforms, theory of distributions, measure theory.

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Can we separate Toeplitz matrices for negative and positive eigenvalues?

Consider a Toeplitz matrix T which has both positive and negative eigenvalues. Can we prove that there exist two Toeplitz matrix T1 and T2 such that T1+T2=T and T1 has only one positive Eigenvalues an …
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